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15 votes
15 votes
III Probability of an event A box is filled with 2 blue cards, 3 red cards, and 7 yellow cards. A card is chosen at random from the box. What is the probability that it is a blue or a yellow card? in simplest form.

User Gerd
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1 Answer

19 votes
19 votes

The total number of cards is:

2 + 3 + 7 = 12 cards

We want probability of blue OR yellow card. Remember, "OR" means "+" and "AND" means "x".

Blue cards = 2

Yellow cards = 7

Thus,

Total blue OR yellow = 2 + 7 = 9

So, we can say that the probability that a card is blue or yellow is:

9/12

Or,

3/4

The correct answer is:


(3)/(4)

User Zignd
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2.9k points